./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark47_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark47_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/bin/ukojak-Rh5K9KB4LI/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/bin/ukojak-Rh5K9KB4LI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 039c983cd55187ea3968542120c3863142c878775a3be18d8ccc83df12199e4d .............................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:07:01,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:07:01,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:07:01,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:07:01,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:07:01,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:07:01,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:07:01,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:07:01,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:07:01,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:07:01,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:07:01,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:07:01,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:07:01,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:07:01,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:07:01,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:07:01,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:07:01,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:07:01,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:07:01,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:07:01,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:07:01,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:07:01,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:07:01,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:07:01,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:07:01,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:07:01,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:07:01,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:07:01,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:07:01,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:07:01,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:07:01,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:07:01,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:07:01,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:07:01,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:07:01,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:07:01,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:07:01,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:07:01,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:07:01,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:07:01,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:07:01,806 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/bin/ukojak-Rh5K9KB4LI/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-10-29 03:07:01,854 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:07:01,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:07:01,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:07:01,857 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:07:01,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:07:01,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:07:01,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:07:01,858 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:07:01,858 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 03:07:01,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:07:01,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:07:01,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:07:01,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:07:01,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:07:01,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:07:01,867 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-29 03:07:01,867 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:07:01,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:07:01,868 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:07:01,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:07:01,868 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:07:01,869 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:07:01,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:07:01,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:07:01,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:07:01,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:07:01,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:07:01,870 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:07:01,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:07:01,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:07:01,873 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/bin/ukojak-Rh5K9KB4LI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 039c983cd55187ea3968542120c3863142c878775a3be18d8ccc83df12199e4d [2021-10-29 03:07:02,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:07:02,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:07:02,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:07:02,169 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:07:02,169 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:07:02,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/loop-zilu/benchmark47_linear.i [2021-10-29 03:07:02,242 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/bin/ukojak-Rh5K9KB4LI/data/8530f09c5/338b33a1c64a4208b32cbfd8b7c3a1f8/FLAG265c632e3 [2021-10-29 03:07:02,675 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:07:02,676 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/sv-benchmarks/c/loop-zilu/benchmark47_linear.i [2021-10-29 03:07:02,683 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/bin/ukojak-Rh5K9KB4LI/data/8530f09c5/338b33a1c64a4208b32cbfd8b7c3a1f8/FLAG265c632e3 [2021-10-29 03:07:03,047 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/bin/ukojak-Rh5K9KB4LI/data/8530f09c5/338b33a1c64a4208b32cbfd8b7c3a1f8 [2021-10-29 03:07:03,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:07:03,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:07:03,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:07:03,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:07:03,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:07:03,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:07:03" (1/1) ... [2021-10-29 03:07:03,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc83699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:03, skipping insertion in model container [2021-10-29 03:07:03,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:07:03" (1/1) ... [2021-10-29 03:07:03,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:07:03,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:07:03,242 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/sv-benchmarks/c/loop-zilu/benchmark47_linear.i[868,881] [2021-10-29 03:07:03,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:07:03,277 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:07:03,288 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/sv-benchmarks/c/loop-zilu/benchmark47_linear.i[868,881] [2021-10-29 03:07:03,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:07:03,305 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:07:03,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:03 WrapperNode [2021-10-29 03:07:03,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:07:03,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:07:03,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:07:03,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:07:03,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:03" (1/1) ... [2021-10-29 03:07:03,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:03" (1/1) ... [2021-10-29 03:07:03,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:07:03,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:07:03,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:07:03,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:07:03,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:03" (1/1) ... [2021-10-29 03:07:03,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:03" (1/1) ... [2021-10-29 03:07:03,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:03" (1/1) ... [2021-10-29 03:07:03,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:03" (1/1) ... [2021-10-29 03:07:03,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:03" (1/1) ... [2021-10-29 03:07:03,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:03" (1/1) ... [2021-10-29 03:07:03,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:03" (1/1) ... [2021-10-29 03:07:03,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:07:03,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:07:03,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:07:03,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:07:03,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:03" (1/1) ... [2021-10-29 03:07:03,395 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:07:03,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:07:03,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:07:03,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:07:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:07:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:07:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:07:03,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:07:03,693 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:07:03,694 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 03:07:03,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:07:03 BoogieIcfgContainer [2021-10-29 03:07:03,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:07:03,703 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:07:03,703 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:07:03,744 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:07:03,744 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:07:03" (1/1) ... [2021-10-29 03:07:03,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:07:03,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:03,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 29 states and 33 transitions. [2021-10-29 03:07:03,787 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2021-10-29 03:07:03,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:07:03,806 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:03,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:04,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:07:04,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:04,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 28 states and 32 transitions. [2021-10-29 03:07:04,077 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-10-29 03:07:04,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:07:04,078 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:04,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:07:04,101 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:07:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:07:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:07:04,188 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:07:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:07:04,221 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2021-10-29 03:07:04,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:07:04 ImpRootNode [2021-10-29 03:07:04,243 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:07:04,246 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:07:04,246 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:07:04,246 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:07:04,247 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:07:03" (3/4) ... [2021-10-29 03:07:04,249 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 03:07:04,304 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b2ef1a-860e-4133-82dc-13a54af3d666/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:07:04,304 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:07:04,307 INFO L168 Benchmark]: Toolchain (without parser) took 1254.86 ms. Allocated memory is still 104.9 MB. Free memory was 68.8 MB in the beginning and 51.6 MB in the end (delta: 17.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-10-29 03:07:04,307 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 104.9 MB. Free memory is still 85.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:07:04,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.96 ms. Allocated memory is still 104.9 MB. Free memory was 68.6 MB in the beginning and 81.3 MB in the end (delta: -12.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:07:04,309 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.08 ms. Allocated memory is still 104.9 MB. Free memory was 81.0 MB in the beginning and 79.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:07:04,310 INFO L168 Benchmark]: Boogie Preprocessor took 46.63 ms. Allocated memory is still 104.9 MB. Free memory was 79.7 MB in the beginning and 78.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:07:04,311 INFO L168 Benchmark]: RCFGBuilder took 314.85 ms. Allocated memory is still 104.9 MB. Free memory was 78.5 MB in the beginning and 67.1 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 03:07:04,312 INFO L168 Benchmark]: CodeCheck took 540.21 ms. Allocated memory is still 104.9 MB. Free memory was 67.1 MB in the beginning and 53.3 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 03:07:04,313 INFO L168 Benchmark]: Witness Printer took 58.76 ms. Allocated memory is still 104.9 MB. Free memory was 53.3 MB in the beginning and 51.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:07:04,318 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 29 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 25]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(x